www.lg.com
OWNER’S MANUAL
Copyright © 2019 - 2020 LG Electronics Inc. All Rights Reserved
MFL70445420
Rev.01_012020
OWNER’S MANUAL
AIR PURIFIER
Read this owner’s manual thoroughly before operating the appliance and keep it
handy for reference at all times.
AS55GD Series
EN ENGLISH TH
ภาษาไทย
TABLE OF CONTENTS
This manual may contain images or content
different from the model you purchased.
This manual is subject to revision by the
manufacturer.
SAFETY INSTRUCTIONS ..............................................................3
IMPORTANT SAFETY INSTRUCTIONS ..........................................................3
INSTALLATION ...............................................................................8
Parts and Specifications....................................................................................8
Unpacking the Appliance.................................................................................10
Installation Place Requirements...................................................................... 11
Transporting Requirements ............................................................................. 11
OPERATION .................................................................................12
Control Panel ..................................................................................................12
Getting Started ................................................................................................14
Adjusting the Fan Speed ................................................................................. 14
Using the Extra Functions ...............................................................................15
Knowing the Air Quality ...................................................................................16
SMART FUNCTIONS ....................................................................19
LG ThinQ Application ......................................................................................19
Smart Diagnosis .............................................................................................. 20
MAINTENANCE ............................................................................ 21
Maintaining the Appliance ...............................................................................21
Cleaning the Appliance ...................................................................................22
Maintaining the Filter ....................................................................................... 23
TROUBLESHOOTING .................................................................. 24
Before Calling for Service ...............................................................................24
3
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SAFETY INSTRUCTIONS
The following safety guidelines are intended to prevent unforeseen risks
or damage from unsafe or incorrect operation of the appliance.
The guidelines are separated into ‘WARNING’ and ‘CAUTION’ as
described below.
This symbol is displayed to indicate matters and operations
that can cause risk. Read the part with this symbol carefully
and follow the instructions in order to avoid risk.
WARNING
This indicates that the failure to follow the instructions can cause
serious injury or death.
CAUTION
This indicates that the failure to follow the instructions can cause the
minor injury or damage to the product.
IMPORTANT SAFETY INSTRUCTIONS
WARNING
To reduce the risk of explosion, fire, death, electric shock,
injury or scalding to persons when using this product, follow
basic precautions, including the following:
Children in the Household
• This appliance is not intended for use by persons (including children)
with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a person
responsible for their safety.
• Children should be supervised to ensure that they do not play with
the appliance.
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Installation
• Do not install the appliance on an uneven or inclined surface.
• Do not install the appliance in an area exposed to direct sunlight or
near heat-generating equipment.
• Do not install the product in a place where combustible gas may leak
or industrial oil or metallic particulates are present.
• Be careful not to let the power plug pressed by the back of the
appliance.
• Do not touch the power plug with wet hands.
• When unplugging the power cord, always pull it by the plug.
• Unplug the appliance during thunder or lightning or when not in use
for a long time.
• Do not bend the power cable excessively or place a heavy object on
top of it.
• Do not extend the length of the power cable or alter it.
• Do not use several devices on a multi-socket extension outlet.
• Make the connection securely so that screw in terminals may not be
loosed when pulling cable.
• Take care to ensure that power cable could not be pulled out or
damaged during operation.
• If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified person in order to
avoid a hazard.
Operation
• If the appliance is immersed in water, stop using it and contact the LG
Electronics service centre.
• If there is a gas leakage (isobutane, propane, LNG, etc.), do not
touch the product or power plug and ventilate the area immediately.
• Do not clean the appliance with brushes, cloths or sponges with
rough surfaces or which are made of metallic material.
• If you detect any abnormal noise, odour or smoke, unplug the product
immediately and contact an LG Electronics service centre.
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• Only an authorized repair person from LG Electronics service centre
should disassemble, repair, or modify the appliance.
• Do not use or store fire, combustibles (ether, benzene, alcohol,
drugs, propane, butane, combustible spray, insecticide, air freshener,
cosmetics, etc.) or flammable materials (candles, lamps, etc.) near
the product.
• Do not place the power cord under rugs, carpeting or mats.
• Do not allow animals or pets to chew on the power cord.
• Do not move the appliance when it is in operation.
• Do not impact the appliance.
• Do not insert hands or metal objects into the air inlet or outlet.
• Do not install and use broken parts.
• Do not put flammables into the appliance.
• Do not move or operate the appliance while its cover is open.
• Do not allow children to climb on or play with the appliance.
• Do not place anything (coffee, flower vase or drinks, etc.) on top of
the appliance.
• The fan is not a toy. It should not be played with or placed where
young children can reach it.
Maintenance
• Dispose of the packing materials (vinyl, styrofoam, etc.) to keep them
out of reach of children.
• Be careful not to allow any part of your body to be pinched when you
detach and reattach parts of the appliance.
• You must stop operating the product and unplug the appliance before
you clean the appliance and replace the filter.
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CAUTION
To reduce the risk of minor injury to persons, malfunction, or
damage to the product or property when using this product,
follow basic precautions, including the following:
Installation
• Do not tilt the appliance to pull or push it when transporting.
• Do not install the appliance in transportation equipment (vehicle/
vessel etc.).
• Do not place the appliance near a TV or a stereo equipment.
• Do not place the appliance under bright light.
• The appliance shall be installed in accordance with national wiring
regulations.
• When moving or storing the appliance, wrap the power cord around
the base of the appliance to prevent personal injury, damage to the
cord or damage to floors.
• Do not place the appliance near curtains.
Operation
• Do not use the product for removal of toxic gas such as carbon
monoxide.
• Do not use the product for ventilation purposes.
• Do not use the appliance for a long time in a region with unstable
voltage.
• Do not place obstacles around the air inlet or outlet.
• For safe use of the appliance, children or others with reduced
mental capabilities need to be closely monitored by a person who is
responsible for their safety.
• Do not use the product for special purposes such as preserving
plants, precision instrument, artworks, etc.
• Do not operate the appliance with wet hands.
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• Do not let the moisture from the humidifier directly touch the
appliance.
• Do not use the appliance while it is not in upright position.
• Do not use the appliance near objects vulnerable to heat.
• Do not use detergents, cosmetics, chemicals, air fresheners, or
disinfectants in the appliance.
• Do not touch any internal parts while the unit is operating or
immediately after operation.
• Use the filter only for its intended purpose.
• The Deodorizing care filter and allergen collection care filter are
assembled together. Do not try to detach them from each other.
Maintenance
• Do not clean with strong detergents of solvent types, but use soft
cloth.
• Do not clean the appliance with an alkaline detergent.
• Do not wipe the appliance surface using sulfuric acid, hydrochloric
acid or organic solvent (thinner, kerosene etc.) or attach a sticker on
the appliance.
• Do not allow the water enter inside the appliance.
• Do not wash the filter with water.
• Be careful not to damage the ultra-fine filter when you use a vacuum
cleaner.
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INSTALLATION
• The appearance or components of the appliance may differ depending on the model.
Parts and Specifications
Front View
a
Air outlet
• It discharges purified air through the filter.
b
Light of air quality
• It displays the overall air quality using a coloured light.
c
Air inlet
• You may remove the front or rear cover separately.
d
Status display panel
• Use it to check the settings of the appliance and the air quality.
e
Control panel
• Use it to set the appliance functions.
f
Air ionizer
• It generates ions and minimizes harmful bacteria in the air.
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Rear View
a
Smart Diagnosis part
• In the event of a malfunction or failure, you can use the Smart Diagnosis option to check the
appliance condition.
b
PM1.0 (particles with a diameter between 1.0 and 2.5 micrometers) sensor
• It detects the concentration of particles.
c
Odour (Gas) sensor
• It detects an odour (gas).
d
Filter
• It minimizes allergic materials, fine particles, possible sources of sick house syndrome, smog
and other odour.
Specifications
• Appearance and specifications may vary without notice to improve the quality of the appliance.
Model AS55GD Series
Power 220 V~, 50 Hz
Exterior dimensions
(
a
x
b
x
c
)
360 x 510 x 360 (mm)
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Filter System
a
Deodorizing care filter
• It minimizes harmful odour (gas) that
are generated in everyday life such
as bathroom smell, cigarette smoke
(smell) and food smell.
b
Allergen collection care filter
• It minimizes PM1.0 and cigarette smoke
from the air.
c
Ultra-fine filter
• It minimizes large particles floating in
the air.
d
Filter handle
• Use it to separate the filter from the
appliance.
Unpacking the Appliance
Unpack the appliance and remove any packing
tape or vinyl before using the appliance.
Removing the Filter Vinyl
1
Grab the top end of the rear cover and gently
pull it. Remove the cover from the appliance.
• You will see “PM1.0 & GAS SENSOR
SYSTEM” on the rear cover of the
appliance.
2
Remove the support(a) located at the filter
inlet.
3
Remove the filter and its vinyl.
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4
Install the filter in the appliance.
• Make sure that the handle(a) faces
upward.
5
Insert the fixing parts at the bottom of the
cover into the holes at the bottom of the
appliance before you close the cover.
NOTE
• Make sure that you remove the filter’s support
and vinyl prior to use otherwise it may result in
appliance malfunction.
• Pay attention to the direction of the filter when
you install the filter otherwise it may cause
malfunction or failure of the appliance.
Installation Place
Requirements
Installation Location
Allow a 1 m clearance between the appliance
and surrounding surfaces or objects. The air inlet
needs space to function properly.
The performance of the appliance may differ
depending on the operating environment (such as
temperature and humidity).
• 40–70 % of humidity is recommended for
optimal performance.
Transporting Requirements
Transporting the Appliance
When moving or storing the appliance, wrap the
power cord around the base of the appliance to
prevent personal injury, damage to the cord or
damage to floors.
Do not hold the outer cover when you carry the
appliance. The cover may open accidentally,
causing the appliance to drop. Dropping the
appliance may cause personal injury or appliance
malfunction.
Hold the bottom of the product with both hands to
move the product safely.
12
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• The appearance or components of the appliance may differ depending on the model.
Control Panel
Control Panel Features
a
Start/Stop Button
b
Speed Button
It allows you to adjust the air flow of the product.
• Press and hold the button for more than 3 seconds to activate the Wi-Fi registration mode.
• Wi-Fi function
− Before appliance registration: Press and hold the button for more than 3 seconds to activate
the Wi-Fi registration mode.
− After appliance registration: Press and hold the button for more than 3 seconds to control the
appliance using a smartphone that has it registered.
− Wi-Fi function off: Press and hold the Start/Stop button and the Speed button at the same
time for more than 3 seconds.
c
Indicator Button
You can check the concentration of the particulate matter by its particle size.
d
Sleep Timer Button
Use it to schedule the time to turn off the appliance.
• Press and hold it for 3 seconds or more to turn on or off the air ionizer.
e
Light Button
Use it to turn the light of air quality on or off.
• Press and hold it for 3 seconds or more to lock or unlock the control panel buttons.
OPERATION
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Status Display Panel
a
Display of air quality
A
Overall air quality (colour)
B
Particulate matter (colour)
C
Concentration of particles or sleep timer
time
D
Concentration of odour (colour)
b
Displays fan speed
c
Icons
Icon Description
It turns on when it is time to
replace the filter.
It turns on when the Wi-Fi
function is activated.
It turns on when the sleep timer
function is activated.
It turns on when the reservation
for turning on/off the appliance
is set in the ThinQ application.
It turns on when the control
panel is locked.
It turns on when the air ionizer
turns on.
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Getting Started
Turn the Appliance on and off
Press the Start/Stop button to start the operation.
NOTE
• Even if power is lost due to a blackout, the
appliance remembers the operation setting
you used last time.
• Once the operation starts, the sensor ready
display( = ) appears for 30 seconds.
Adjusting the Fan Speed
Air Purifier Fan Speed
You can adjust the air flow of the air purifier.
Press the Speed button during the operation.
• Each time you press the button, the speed
changes in the following order:
Auto ~ Low ~ Middle ~ High ~ Turbo.
Displaying air purifier speed
If you adjust the speed, it is displayed on the
status display panel. It increases by 2 grids at a
time.
[ Example of air purifier speed ‘Middle’ ]
NOTE
• The speed is set to Auto when you first start the
operation. Auto mode controls the wind speed
automatically according to the contamination
level of the indoor air.
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Using the Extra Functions
Using the Air Ionizer
To generate ions to minimize various bacteria from
the air.
Press the Sleep Timer button for more than 3
seconds while operating.
• b (Air ionizer) is displayed on the status
display.
NOTE
• When the operation is stopped, the air ionizer
function can not be used.
Setting the Sleep Timer
You can set the appliance to stop automatically
after running for the duration you set.
Press the Sleep Timer button during the
operation.
• Each time you press the button, the sleep timer
changes in the following order:
After 2 hours ~ After 4 hours ~ After 8 hours
~ After 12 hours ~ Cancel.
• Once the sleep timer is set, the status display
panel displays only the sleep timer icon except
for a few other icons.
NOTE
• The speed is set to Low by default for a certain
period of time. After the time passes, the speed
is controlled automatically depending on the air
quality.
• Even when the sleep timer is set, you can
still change the speed by pressing the Speed
button.
• If you press the Sleep Timer button once more
while the sleep timer is set, you can check the
preset time.
• The sleep timer remains on even if the power
goes off or if there is blackout.
Locking the Control Panel
You can lock the buttons on the control panel
to prevent the appliance from operating due to
unforeseen reasons, such as a child manipulating
the buttons.
Press the Light button for at least 3 seconds
during the operation.
• k (Lock) is displayed on the status display
panel.
NOTE
• You can turn off the lock function in the same
way as turning it on.
• The control panel can be locked even when the
appliance is not operated.
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Knowing the Air Quality
You can check the overall air quality by looking at the light of air quality and the status display panel.
Overview of the Air Quality
The overall air quality is calculated based on the particles and odour (gas) concentrations and is
categorized into 4 levels depending on the contamination of the air.
Colour
Overall Air
Quality
Concentration of PM (μg/m
3
)
Concentration of
Odour
State
PM10
(coarse
particles)
PM2.5
(fine particles)
PM1.0
(particles with
a diameter
between 1.0
and 2.5 μm)
State Level
Red Poor 255 or more 56 or more 56 or more Very strong 4
Orange Unhealthy 155 ~ 254 36 ~ 55 36 ~ 55 Strong 3
Yellow Moderate 55 ~ 154 13 ~ 35 13 ~ 35 Normal 2
Green Good 54 or less 12 or less 12 or less Weak 1
NOTE
• The colour of overall air quality is determined based on whichever is worse between the particles
concentration and odour (gas) concentration.
• PM (particulate matter) concentration is displayed in increments of 1 unit, from 8 to 999. PM
concentration values are based on the data sheet provided by the sensor manufacturer.
• The PM concentration measurement was tested using LG Electronics’ standard test materials.
• Differences in PM concentration values may be the result of different methods of measuring or
differences in the actual PM concentration levels.
− If the PM concentration is high, the difference between the displayed concentration and the actual
concentration may become large.
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Air Quality Details on the Status
Display Panel
a
Overall air quality
You can check the overall air quality by
looking at the colour change on the status
display panel.
b
Odour concentration
You can check the odour concentration by
looking at the colour change on the status
display panel.
c
Particles concentration
You can check the particles concentration
by looking at the particles concentration
value and the particle size indicator colour.
It shows the worst status among the PM10
/ PM2.5 / PM1.0.
d
Particulate Matter
The colour of the particulate matter is
solely determined based on the particles
concentration.
Turning on/off the Light of Air
Quality
1
Check the cleanliness of the indoor air by
looking at the light of air quality.
a
Light of air quality
2
Press the Light button to turn it on/off.
NOTE
• The light of air quality turns on white for the
sensor stabilization period (30 seconds). The
odour (gas) sensor is stabilized 2 minutes after
you start the operation.
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Knowing the Particles
Concentration
You can check the particulate matter concentration
by its particle size.
Press the Indicator button during the operation
• Whenever you press the button, the display
changes in the following order:
PM10 ~ PM2.5 ~ PM1.0
• The concentration of the selected particles is
displayed for about 10 seconds.
NOTE
• The overall air quality level is a result of both
PM concentration and the odour level.
• Even two products placed in the same space
could measure the concentration of particles
differently due to air circulation.
• Unlike the odour(gas), the concentration of
particles could be measured slowly due to the
slow diffusion rate.
• Due to the flow around the particle sensor,
the displayed PM concentration and actual
concentration may differ.
• When using the appliance in the following
environment, the PM concentration may be
displayed differently from the actual.
− Where there are influences such as sofa,
bed, carpet, cleaner, humidity, smoke,
fragrance, cosmetics, perfume, insect, pet
− Where there are construction site, roadside,
factory, entrance, window, ventilation
− Where there are affected by cooking or using
humidifiers, sprays or other products which
generate steam or fine particles.
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SMART FUNCTIONS
LG ThinQ Application
The LG ThinQ application allows you to
communicate with the appliance using a
smartphone.
LG ThinQ Application Features
Smart Diagnosis
If you experience a problem while using the
appliance, this smart diagnosis feature will help
you diagnose the problem.
Settings
Allows you to set various options on the appliance
and in the application.
NOTE
• If you change your wireless router, Internet
service provider, or password, delete the
registered appliance from the LG ThinQ
application and register it again.
• The application is subject to change for
appliance improvement purposes without
notice to users.
• Functions may vary by model.
Before using LG ThinQ
Application
This feature is only available on models with Wi-Fi
function.
1
Check the distance between the appliance
and the wireless router (Wi-Fi network).
• If the distance between the appliance and
the wireless router is too far, the signal
strength becomes weak. It may take a long
time to register or installation may fail.
2
Turn off the Mobile data or Cellular Data on
your smartphone.
3
Connect your smartphone to the wireless
router.
NOTE
• To verify the Wi-Fi connection, check that Wi-Fi
f icon on the control panel is lit.
• The appliance supports 2.4 GHz Wi-Fi
networks only. To check your network
frequency, contact your Internet service
provider or refer to your wireless router manual.
• LG ThinQ is not responsible for any
network connection problems or any faults,
malfunctions, or errors caused by network
connection.
• If the appliance is having trouble connecting
to the Wi-Fi network, it may be too far from
the router. Purchase a Wi-Fi repeater (range
extender) to improve the Wi-Fi signal strength.
• The Wi-Fi connection may not connect or may
be interrupted because of the home network
environment.
• The network connection may not work properly
depending on the Internet service provider.
• The surrounding wireless environment can
make the wireless network service run slowly.
• The appliance cannot be registered due to
problems with the wireless signal transmission.
Unplug the appliance and wait about a minute
before trying again.
• If the firewall on your wireless router is enabled,
disable the firewall or add an exception to it.
• The wireless network name (SSID) should be
a combination of English letters and numbers.
(Do not use special characters.)
• Smartphone user interface (UI) may vary
depending on the mobile operating system
(OS) and the manufacturer.
• If the security protocol of the router is set
to WEP, you may fail to set up the network.
Please change it to other security protocols
(WPA2 is recommended) and register the
product again.
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Installing the LG ThinQ
Application
Search for the LG ThinQ application from the
Google Play Store or Apple App Store on a
smartphone. Follow instructions to download and
install the application.
Open Source Software Notice
Information
To obtain the source code under GPL, LGPL, MPL,
and other open source licenses, that is contained
in this product, please visit http://opensource.lge.
com. In addition to the source code, all referred
license terms, warranty disclaimers and copyright
notices are available for download.
LG Electronics will also provide open source code
to you on CD-ROM for a charge covering the cost
of performing such distribution (such as the cost of
media, shipping, and handling) upon email request
to [email protected]. This offer is valid for a
period of three years after our last shipment of this
product. This offer is valid to anyone in receipt of
this information.
Smart Diagnosis
This feature is only available on models with the
c or d logo.
Use this feature to help you diagnose and solve
problems with your appliance.
NOTE
• For reasons not attributable to LGE’s
negligence, the service may not operate due to
external factors such as, but not limited to, Wi-
Fi unavailability, Wi-Fi disconnection, local app
store policy, or app unavailability.
• The feature may be subject to change without
prior notice and may have a different form
depending on where you are located.
Using LG ThinQ to Diagnose
Issues
If you experience a problem with your Wi-Fi
equipped appliance, it can transmit troubleshooting
data to a smartphone using the LG ThinQ
application.
• Launch the LG ThinQ application and select
the Smart Diagnosis feature in the menu.
Follow the instructions provided in the LG
ThinQ application.
Using Audible Diagnosis to
Diagnose Issues
Follow the instructions below to use the audible
diagnosis method.
• Launch the LG ThinQ application and select
the Smart Diagnosis feature in the menu.
Follow the instructions for audible diagnosis
provided in the LG ThinQ application.
1
Press and hold the Indicator button for
5 seconds or more to execute the Smart
Diagnosis function.
2
Hold the phone on the c or d logo on the
back of the appliance.
3
After the data transfer is complete, the
diagnosis will be displayed in the application.
NOTE
• For best results, do not move the phone while
the tones are being transmitted.
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